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Qualiseal Technology

7319 W. Wilson Ave.
Harwood Heights, IL 60706
United States

Founded in 1951 in the Chicago area, Qualiseal Technology is a global leader in the design and manufacturing of custom-engineered mechanical seals for demanding aerospace applications. A division of Technetics Group, we assure the highest quality product at the greatest total value.

Every time our parts fly on a commercial flight or military mission, it’s a testament to our customer focus, design expertise, ISO 9001:2015/AS9100 Rev D registered processes and flexible, collaborative approach.

Look up, and you’ll see thousands of our parts flying in commercial airliners, military fighters, transports, helicopters and regional and business jets. Applications include starters, auxiliary power units, gearboxes, fuel systems, hydraulic systems and scavenge pumps.

In addition to aerospace, we also provide seals for the centrifugal air compressor (CENTAC), food, military and other industrial markets, satisfying their need for mechanical seals in critical applications.